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Metadata Identifier: gov.noaa.csc.maps:wa2013_pslc_tulalip_m2614

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Tulalip Partnership In October 2012, WSI (Watershed Sciences, Inc.) was contracted by the Puget Sound LiDAR Consortium (PSLC)to collect Light Detection and Ranging (LiDAR) data on a 5-year cycle for sites in Washington. The Tulalipsite in northwestern Washington is one of these sites. Unclassified (1), Ground (2) and Snow (14).
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 2013 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Tulalip Partnership
  • 2014-01-14
1 Lidar Dataset Supplemental Information
    1 None
      1 North American Datum 1983
      • 2007-01-19
      1 none
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        CI_Series

        none found
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        CI_ResponsibleParty

        Count Component Individual Organization Position Email Role Linkage
        1 resourceProvider http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
        1 Citation URL ftp://csc.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/2614/supplemental/
        1 NOAA CSC (originator) DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce csc.info@noaa.gov originator
        1 NOAA CSC (publisher) DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce csc.info@noaa.gov publisher
        1 NOAA CSC(distributor) DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce csc.info@noaa.gov distributor
        1 NOAA CSC (processor) DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce csc.info@noaa.gov processor
        1 Diana Martinez - originator - Puget Sound Lidar Consortium (PSLC) Diana Martinez Puget Sound Lidar Consortium (PSLC) Senior GIS Analyst, Puget Sound Regional Council dmartinez@psrc.org originator
        1 Diana Martinez - pointOfContact - Puget Sound Lidar Consortium (PSLC) Diana Martinez Puget Sound Lidar Consortium (PSLC) Senior GIS Analyst, Puget Sound Regional Council dmartinez@psrc.org pointOfContact
        1 EPSG Registry European Petroleum Survey Group publisher http://www.epsg-registry.org/
        1 Mike Sutherland(author) Mike Sutherland DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce mike.sutherland@noaa.gov author
        1 Mike Sutherland Mike Sutherland DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce mike.sutherland@noaa.gov distributor
        1 Mike Sutherland (processor) Mike Sutherland DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce mike.sutherland@noaa.gov processor
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        CI_OnlineResource

        Count Component Linkage Name Description Function
        1 ftp://csc.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/2614/supplemental/ Where they exist, the supplemental information folder will include acquisition and QA/QC reports, breaklines, a footprint of the spatial extent of the data and other relevant related information information
        1 http://www.epsg-registry.org/ European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search
        1 http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269 NAD83 Link to Geographic Markup Language (GML) description of reference system. information
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        MD_Identifier or RS_Identifier

        Count Component Code
        1 Ellipsoid in Meters
        1 Leica ALS50-II
        1 Leica ALS60
        1 urn:ogc:def:crs:EPSG::4269
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        EX_Extent

        Bounding Box Temporal Extent
        Count Component Description West East North South Start End
        1 -123.5796125 -122.9079181 48.4311248 47.7515734 2013-07-03 2013-07-06 2013-07-12 2013-07-19 2013-07-23 2013-07-04 2013-07-09 2013-07-16 2013-07-21 2013-07-31
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        EX_GeographicBoundingBox

        Count Component West East North South
        1 -123.5796125 -122.9079181 48.4311248 47.7515734
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        EX_TemporalExtent

        Count Component Start End
        3
        1 2013-07-03 2013-07-04
        1 2013-07-06 2013-07-09
        1 2013-07-12 2013-07-16
        1 2013-07-19 2013-07-21
        1 2013-07-23 2013-07-31
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        MD_Format

        Count Component Name Version specification
        1 LAZ
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        MD_Medium

        none found
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        MD_Constraints

        Count Component Use Limitation
        1 Lidar Use Limitation These data depict the elevations at the time of the survey and are only accurate for that time. Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Any conclusions drawn from analysis of this information are not the responsibility of NOAA or any of its partners. These data are NOT to be used for navigational purposes.
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        MD_ReferenceSystem

        Count Component Code Authority Title
        1 Ellipsoid Ellipsoid in Meters
        1 NAD83 urn:ogc:def:crs:EPSG::4269 North American Datum 1983
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        MD_GridSpatialRepresentation

        none found
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        MD_Georeferenceable or MI_Georeferenceable

        none found
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        MD_Georectified or MI_Georectified

        none found
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        MD_Dimension

        none found
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        MD_CoverageDescription or MI_CoverageDescription

        none found
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        MD_Band or MI_Band

        none found
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        MI_RangeElementDescription

        none found
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        MD_AggregateInformation

        Count Component Title Code Association Type Code
        1 Lidar Dataset Supplemental Information crossReference
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        LE_Source or LI_Source

        none found
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        LE_ProcessStep or LI_ProcessStep

        Count Component DateTime Description
        1 Planning.In preparation for data collection, WSI reviewed the project area using Google Earth,and flightlines were developed using a combination of specialized software. Carefulplanning by acquisition staff entailed adapting the pulse rate, flight altitude, scanangle, and ground speed to ensure complete coverage of the study area at thetarget point density of 11.43 points per square meter (ground points only were calculated at0.83 points per square meter). Efforts are taken to optimize flight paths by minimizingflight times while meeting all accuracy specifications.Factors such as satellite constellation availability and weather windows mustbe considered during the planning stage. Any weather hazards or conditions affectingthe flight were continuously monitored due to their potential impact on the dailysuccess of airborne and ground operations. In addition, a variety of logisticalconsiderations required review including private property access, potential airspace restrictions, and availability of company resources (both staff andequipment).Special care was taken to acquire the tidal flats at low tide wherepossible.
        1 LiDAR Processing Steps:1. Resolve kinematic corrections for aircraft position data using kinematic aircraft GPSand static ground GPS data.Software - Waypoint GPS v.8.3 Trimble Business Center v.3.00 Geographic Calculator 20132. Develop a smoothed best estimate of trajectory (SBET) file that blends post-processedaircraft position with attitude data. Sensor head position and attitude are calculatedthroughout the survey. The SBET data are used extensively for laser point processing.Software - IPAS TC v.3.13. Calculate laser point position by associating SBET position to each laser point returntime, scan angle, intensity, etc. Create raw laser point cloud data for the entire surveyin *.las (ASPRS v. 1.2) format. Data are converted to orthometric elevations (NAVD88) byapplying a Geoid12 correction.Software - ALS Post Processing Software v.2.744. Import raw laser points into manageable blocks (less than 500 MB) to perform manualrelative accuracy calibration and filter erroneous points. Ground points are thenclassified for individual flight lines (to be used for relative accuracy testingand calibration).Software - TerraScan v.13.0085. Using ground classified points per each flight line, the relative accuracy is tested.Automated line-to-line calibrations are then performed for system attitude parameters(pitch, roll, heading), mirror flex (scale) and GPS/IMU drift.Calibrations are calculated on ground classified points from paired flight lines andresults are applied to all points in a flight line. Every flight line is used forrelative accuracy calibration.Software - TerraMatch v.13.0026. Classify resulting data to ground and other client designated ASPRSclassifications (Table 7). Assess statistical absolute accuracy via direct comparisonsof ground classified points to ground RTK survey data.Software - TerraScan v.13.008 TerraModeler v.13.0027. Generate bare earth models as triangulated surfaces. Highest hit models were createdas a surface expression of all classified points (excluding the noise and withheldclasses). All surface models were exported as ESRI grids at a 3-foot pixel resolution.Software - TerraScan v.13.008 ArcMap v. 10.1 TerraModeler v.13.002
        1 2014-01-14T00:00:00 The NOAA Coastal Services Center (CSC) downloaded topographic files in LAZ format from PSLC's website.The files contained lidar easting, northing, elevation, intensity, return number, class, scan angleand GPS time measurements. Entiat data were received in Washington State Plane North, 4601 (feet) andreferenced to NAVD88 (feet).CSC performed the following processing for data storage and Digital Coast provisioning purposes:1. The All-Return LAZ files were cleared of variable lengths records.2. The All-Return LAZ files were converted from a Projected Coordinate System (State Plane 4601)to a Geographic Coordinate system (NAD83).3. The All-Return LAZ files were converted from NAVD88 to ellipsoidal heights using Geoid03.
        1 2014-01-27T00:00:00 The NOAA National Geophysical Data Center (NGDC) received lidar data files via ftp transfer from the NOAA Coastal Services Center. The data are currently being served via NOAA CSC Digital Coast at http://www.csc.noaa.gov/digitalcoast/. The data can be used to re-populate the system. The data are archived in LAS or LAZ format. The LAS format is an industry standard for LiDAR data developed by the American Society of Photogrammetry and Remote Sensing (ASPRS); LAZ is a loseless compressed version of LAS developed by Martin Isenburg (http://www.laszip.org/). The data are exclusively in geographic coordinates (either NAD83 or ITRF94). The data are referenced vertically to the ellipsoid (either GRS80 or ITRF94), allowing for the ability to apply the most up to date geoid model when transforming to orthometric heights.
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        MI_Operation

        none found
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        MI_Platform

        none found
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        MI_Instrument

        Count Component Code Type Description
        1 Leica ALS50-II Light Detection and Ranging
        1 Leica ALS60 Light Detection and Ranging
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